fine tune template

Author: wxiaoguang

templates/repo/header.tmpl

@@ -211,7 +211,7 @@
 						</a>
 					{{end}}
 
-					{{if and (.Permission.CanReadAny ctx.Consts.RepoUnitTypePullRequests ctx.Consts.RepoUnitTypeIssues ctx.Consts.RepoUnitTypeReleases) (not .IsEmptyRepo)}}
+					{{if and (.Permission.CanReadAny ctx.Consts.RepoUnitTypePullRequests ctx.Consts.RepoUnitTypeIssues ctx.Consts.RepoUnitTypeReleases ctx.Consts.RepoUnitTypeCode) (not .IsEmptyRepo)}}
 						<a class="{{if .PageIsActivity}}active {{end}}item" href="{{.RepoLink}}/activity">
 							{{svg "octicon-pulse"}} {{ctx.Locale.Tr "repo.activity"}}
 						</a>

templates/repo/navbar.tmpl

@@ -1,6 +1,7 @@
 {{$canReadCode := $.Permission.CanRead ctx.Consts.RepoUnitTypeCode}}
 
 <div class="ui fluid vertical menu">
+	{{/* the default activity page "pulse" could work with any permission: code, issue, pr, release*/}}
 	<a class="{{if .PageIsPulse}}active {{end}}item" href="{{.RepoLink}}/activity">
 		{{ctx.Locale.Tr "repo.activity.navbar.pulse"}}
 	</a>